Commerce secretary pick Ross, the billionaire who invests in distressed assets, was even more reserved, saying Yellen has done a "reasonably good job" under tough circumstances.

Ross refused to comment on whether Yellen should finish out her term, saying that's up to Trump.

Trump was highly critical of Yellen during the campaign, saying she's been politically motivated in maintaining low interest rates to keep the economy growing in order to protect President Barack Obama's legacy.

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